#include <stdio.h> int main() { int length; int width; int Rectangle (length*width); printf("Enter the lenght : "); scanf("%d",&length); printf("Enter the width :"); scanf("%d",&width); printf("Total area : %d",&Rectangle); scanf("%d,%d",length,width); return 0; }

First take the input and then calculate the area, length and width are uninitialized an contain garbage value

Neither of them worked. At least std::views does not work

Hi everyone! This is my task Create src/s21_string.h and src/s21_string.c files and add declaration and definition of the s21_strlen function to them. declaration in s21_string.h ################### #include <stdio.h> #include <stdlib.h> int s21_string(char str); ################### definition in s21_string.c ################### int s21_strlen(char *s){ char *sc = s; while (*sc != '\0') { sc++; } return sc - s; } ################### If its possible can you check please?

Weird way to get string length

Hi everyone! This is my task Create src/s21_string.h and src/s21_string.c files and add declaration and definition of the s21_strlen function to them. declaration in s21_string.h ################### #include <stdio.h> #include <stdlib.h> int s21_string(char str); ################### definition in s21_string.c ################### int s21_strlen(char *s){ char *sc = s; while (*sc != '\0') { sc++; } return sc - s; } ################### If its possible can you check please?

CONTINUATION! Create a test program, src/s21_string_test.c, that should include the s21_strlen_test function for checking the s21_strlen function with a set of test data (minimum 3): normal values, abnormal values, boundary values, etc. For each test, the input, output, and test result (SUCCESS/FAIL) must be output to stdout. Add the launch of this function to main. #include "s21_string.h" void s21_strlen_test(int length); int main () { s21_strlen_test(s21_string("Hello World!")); s21_strlen_test(s21_string("H")); //abnormal values ??? s21_strlen_test(s21_string("")); // boundary values ??? return 0; } void s21_strlen_test(int length){ if (length > 0){ printf("SUCCESS"); } else { printf("FAIL"); } } Can you explain or give the examples for abnormal and boundary values ?

std::views is a library feature and not a language feature. So if clang can't compile it with libc++, you can ask clang to compile the code with libstdc++ (the gnu standard library implementation that gcc uses). This is assuming that clang version you are using supports concepts. The command line option for clang to choose a standard library implementation is -stdlib=<libc++ or libstdc++>. A better option would be to use rangesv3

when do you use void in a class?

did you mean void* ?

Have a good day, how to access enum members within a struct with a pointer, is it possible? my example: ========== #include <stdio.h> typedef enum Week_t { Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday } week; typedef struct Day_t { week wk; } day; int main (void) { day *d; int get_day = d->wk = Thursday; printf("%d\n", get_day); return 0; } I've got segmentation fault as output.

Pls anyone tell

Can anyone find the problem with the following code? Convert decimal to binary: int main (){ int a,b; cin>>a; int s=0; int c=1; while (a>0){ b=a%2; s=s+(b*c); a=a/2; c=c*10; } cout<<s; }

Can anyone find the problem with the following code? Convert decimal to binary: int main (){ int a,b; cin>>a; int s=0; int c=1; while (a>0){ b=a%2; s=s+(b*c); a=a/2; c=c*10; } cout<<s; }

which numbers did you test it with? This method only works for small numbers because in the binary representation you need more digits in comparison to a decimal representation. Ideally you should create a string representation of the number

Take array to Store binary bits

Ohk Is their any other way without using arrays?

Actually I had to submit the solution on the website so I don't know for what input were the test cases wrong

Use string instead of arrays

How to input only alphanumeric and space in a string in c?

In c++ isaplha is function you can use that and compare string character with spaces

No i need to implement in c

Compare character and with ASCII values or directly with character

void write_book() { system("cls"); int more_or_main; fp.open("book.dat",ios::out|ios::app); do { bk.create_book(); fp.write((char*)&bk,sizeof(book)); cout<<"\nPress 1 to add more books."; cout<<"\nPress 2 to return to main menu.\n"; cout<<"Enter: "; cin>>more_or_main; }while(more_or_main == 1); fp.close(); } Here is the part of my code I need it to go main_menu to when press 2. How can i do it?

what do you mean by "go main_menu"?

Its a function i create. Once i press 2 i need it to go main_menu(); How can i arrange the code?

if statement?

I remove do while and try to implement if statment. But it didn't work 🤔

c++ is hard

That's an understatement, I have done C++ for more than 10 years and still I learn niche details every other week

hello! explain why the pointer to the next element is underlined with wavy (red) lines in visual studio? struct node { struct door struct node *next; }; struct node* init(struct door* door){ struct node *lst; lst = (struct node*)malloc(sizeof(struct node)); lst-> = door; lst->next = NULL; return (lst); }

Would you suggest c++ as beginner friendly ?

Both yes and no: Yes because just getting started is easy, you can learn concepts in isolation one by one, you can learn the importance of abstraction, you can learn the way CPUs work, design patterns, memory, operating systems... But also no because if you learn without a teacher you will try to learn everything at the same time and do wacky things because they work

Both yes and no: Yes because just getting started is easy, you can learn concepts in isolation one by one, you can learn the importance of abstraction, you can learn the way CPUs work, design patterns, memory, operating systems... But also no because if you learn without a teacher you will try to learn everything at the same time and do wacky things because they work

For me it feels like it may be better to learn Java/C# as the first language, and then switch to C++

It's nice to do wacky things and get called out for them so you don't do em again Some of us don't have the liberty of having someone by your side as you learn

The main issue is that without a mentor or something like that, getting called on the wacky things doesn't happen

Even with a teacher, it's the whole variety of ways how to teach, and there are things like "we are doing it now like this, in reality we will do it the proper way", or "let's start with C first"

hai , i need help . which one is better for programming student , ryzen 5 5500u or intel 5 ?

okaynoted. thankyou for the suggestion rain ☺️

But for really best performance in software engineering u can try macbook

Both yes and no: Yes because just getting started is easy, you can learn concepts in isolation one by one, you can learn the importance of abstraction, you can learn the way CPUs work, design patterns, memory, operating systems... But also no because if you learn without a teacher you will try to learn everything at the same time and do wacky things because they work

What would you suggest for beginner instead of c++ ?

I'm running linux

Do you also program in other languages?